Caddx Adapts DJI FPV Digital Video Transmitter for DJI FPV Drone Sky End Unit with Silver Finish, Compatible with FPV Racing Drones and Freestyle Models, Includes Polar Vista Kit and Mounting Hardware for Full Take-off Weights Up to 1.5kg
Caddx Adapts DJI FPV Digital Video Transmitter Kit for Enhanced Drone First-Person View Performance

This Caddx digital video transmitter is engineered as a dedicated sky-end unit for the DJI FPV system, providing a core component for upgrading the transmission capabilities of compatible racing and freestyle drones. Designed to integrate seamlessly, it delivers a digital video feed critical for precise piloting during FPV flight. The unit is supplied as a complete Polar Vista kit, including all necessary mounting hardware, and is intended for operation on drones with a total take-off weight between 250 grams and 1.5 kilograms. Its specifications, including a defined maximum flight height parameter, align with common operational guidelines for this category of device. Suitable for users aged 14 and over, it represents a practical upgrade path for pilots seeking reliable digital transmission from their airborne platform.
Features and Construction

The Caddx transmitter is built to function as the airborne video transmission component in a DJI FPV digital system. Its construction centres on providing stable digital video downlink for first-person view flying.
Material and Build
The transmitter consists of electronic components housed within a casing designed for aerial use. The included mounting hardware comprises metal M2 screws in three different lengths (3mm, 4mm, and 5mm) and four screw spacers, which allow for secure and adaptable physical attachment to various drone frames. The unit features a consistent silver colour finish. The package includes essential connection cables: a 3-in-1 wire for power and signal integration and a separate menu wire for system configuration.
Size and Practical Fit
A key operational parameter is the supported drone weight range. The transmitter is designed for use on models with a full take-off weight from 250g up to and including 1.5kg, covering many popular FPV racing and freestyle quadcopter builds. This specification helps ensure compatibility and reliable performance within the designed system limits. The maximum flight height is listed as 0 to 120 metres inclusive, which defines the vertical operational envelope for the transmission system under standard conditions.
Uses and Placement

This unit serves as a key component for pilots wanting to utilise or upgrade to a digital FPV video system on their existing drone.
Event or Professional Use
In FPV racing events or freestyle competitions, reliable video transmission is fundamental. This transmitter, as part of the DJI FPV digital ecosystem, provides a clean, low-latency video feed that can be crucial for high-speed manoeuvring and precise control. Its compatibility with drones up to 1.5kg means it can be fitted to a wide range of competitive builds. The handle-based remote control mode indicates it is operated via a standard radio transmitter, which is the norm for competitive and professional drone piloting.
Everyday Home Use
For hobbyists and enthusiasts flying in approved areas, this transmitter enables a high-quality digital FPV experience. The included Polar Vista kit and all mounting hardware mean that installation on a compatible home-built or pre-assembled drone is straightforward. The age rating of 14 years and over, following the 3C configuration category for toys, provides clear guidance on its appropriate use. It allows pilots to enjoy a stable, immersive first-person view during recreational flying within the specified altitude parameters.
Benefits and Buying Value

The value of this product lies in its specific compatibility and the completeness of the supplied kit for a functional upgrade.
Reuse and Low Maintenance
The transmitter is a dedicated electronic component with no stated moving parts, suggesting a focus on reliable operation over repeated flights. The use of standard M2 screws and spacers for mounting means it can be removed and reinstalled on different compatible frames if needed. Care should be taken with the electronic connections and cables to maintain signal integrity.
Why Choose This Product
This Caddx transmitter is a direct solution for integrating a DJI digital FPV video system onto a drone that falls within the 250g to 1.5kg weight class. The primary advantage is the provision of a complete sky-end kit—the Polar Vista unit plus all necessary screws, spacers, and connection wires—which removes the need to source compatible mounting hardware separately. Its operation is defined by clear parameters (weight range, altitude limit, handle control), allowing buyers to assess compatibility with their specific drone and flying intentions before purchase.

